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Jahn-Teller / Kondo Interplay in a Three-Terminal Quantum Dot

Ryan C. Toonen·Hua Qin·Andreas K. Huettel·Srijit Goswami·Daniel W. van der Weide·Karl Eberl·Robert H. Blick
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Abstract

In quantum dot circuits, screening electron clouds in strongly-coupled leads will hybridize with the states of the artificial atom. Using a three-terminal geometry, we directly probe the atomic structure of a quantum dot with Kondo coupling. Our measurements reveal that this hybrid system behaves as a non-linear entity with orbital degeneracy. Geometric distortion reduces the symmetry, lowers the energy, and lifts the degeneracy--the Jahn-Teller effect.

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Ryan C. Toonen, Hua Qin, Andreas K. Huettel, Srijit Goswami, Daniel W. van der Weide, Karl Eberl, Robert H. Blick. 2006-09-26. Jahn-Teller / Kondo Interplay in a Three-Terminal Quantum Dot. https://arxiv.org/abs/cond-mat/0512235

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